Marketable Securities (Details) - USD ($) $ in Thousands	Mar. 04, 2017	Feb. 27, 2016
Amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale
Amortized Cost	$ 9,595	$ 42,571
Gross Unrealized Gains	91	285
Gross Unrealized Losses	(97)	(164)
Estimated Fair Value	9,589	42,692
Municipal bonds
Amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale
Amortized Cost	9,595	12,393
Gross Unrealized Gains	91	285
Gross Unrealized Losses	(97)	(109)
Estimated Fair Value	$ 9,589	12,569
Mutual fund
Amortized cost, gross unrealized gains and losses, and estimated fair values of investments available for sale
Amortized Cost		30,178
Gross Unrealized Gains		0
Gross Unrealized Losses		(55)
Estimated Fair Value		$ 30,123

Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt securities classified as available-for-sale.

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt securities classified as available-for-sale.

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This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
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-Publisher FASB
-Name Accounting Standards Codification
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Amount of debt securities categorized neither as held-to-maturity nor trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
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